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| author | David S. Miller <davem@davemloft.net> | 2008-11-06 22:43:03 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-06 22:43:03 -0800 |
| commit | 9eeda9abd1faf489f3df9a1f557975f4c8650363 (patch) | |
| tree | 3e0a58e25b776cfbee193195460324dccb1886c7 /security/selinux | |
| parent | 61c9eaf90081cbe6dc4f389e0056bff76eca19ec (diff) | |
| parent | 4bab0ea1d42dd1927af9df6fbf0003fc00617c50 (diff) | |
| download | linux-9eeda9abd1faf489f3df9a1f557975f4c8650363.tar.bz2 | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/ath5k/base.c
net/8021q/vlan_core.c
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/hooks.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index aedf02b1345a..f3c4bc12fea3 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2126,14 +2126,16 @@ static inline void flush_unauthorized_files(struct files_struct *files) tty = get_current_tty(); if (tty) { file_list_lock(); - file = list_entry(tty->tty_files.next, typeof(*file), f_u.fu_list); - if (file) { + if (!list_empty(&tty->tty_files)) { + struct inode *inode; + /* Revalidate access to controlling tty. Use inode_has_perm on the tty inode directly rather than using file_has_perm, as this particular open file may belong to another process and we are only interested in the inode-based check here. */ - struct inode *inode = file->f_path.dentry->d_inode; + file = list_first_entry(&tty->tty_files, struct file, f_u.fu_list); + inode = file->f_path.dentry->d_inode; if (inode_has_perm(current, inode, FILE__READ | FILE__WRITE, NULL)) { drop_tty = 1; |